Franklin stove

Fires in confined areas cause a lot of smoke, and chimneys allow hot air from the fire to escape immediately. Rather than creating a draft, Franklin devised a stove that would heat up the metal of the stove and let the air escape much more slowly. Initially it sold poorly, but David Rittenhouse made significant improvements.
 Benjamin Franklin America 1742 Franklin stove

Fires in confined areas cause a lot of smoke, and chimneys allow hot air from the fire to escape immediately. Rather than creating a draft, Franklin devised a stove that would heat up the metal of the stove and let the air escape much more slowly. Initially it sold poorly, but David Rittenhouse made significant improvements.